Why Is Sketch Leaving the Mac App Store?
We’ve been considering our options for some time. Over the last year, as we’ve made great progress with Sketch, the customer experience on the Mac App Store hasn’t evolved like its iOS counterpart. We want to continue to be a responsive, approachable, and easily-reached company, and selling Sketch directly allows us to give you a better experience.

We don’t expect this decision to be unanimously popular, but we want to share how we arrived at it. We take your satisfaction and support seriously, and hope you can understand the choice we have made.

We all love the Mac App Store, but sadly the developers behind Sketch are right, it does not evolve fast enough. Event with the certificate debacle aside, yes I still have apps that are broken to this date, and sandboxing issues, the Mac App Store needs love from Apple. Perhaps a few top-notch apps leaving is what Apple needs to refocus resources to it? I sure hope so!